It’s best to avoid wearing perfume or cologne when you’re going to be in the sun for a prolonged period of time. Perfumes and colognes, especially those that contain oils from musk, sandalwood, citrus, bergamot, and vanilla, can actually be chemically changed by the sun. This chemical change can trigger an allergic reaction in the skin and increase the chance of hyper-pigmentation (age spots). Yikes! But prevention is easy: use a healthy, natural sunscreen and skip the fragrance!